diff --git a/smoothschedule/compose/production/traefik/traefik.yml b/smoothschedule/compose/production/traefik/traefik.yml
index 7af834b..2f901b1 100644
--- a/smoothschedule/compose/production/traefik/traefik.yml
+++ b/smoothschedule/compose/production/traefik/traefik.yml
@@ -138,7 +138,7 @@ http:
     # Routes to nginx which serves the frontend SPA and proxies /api/ to Django
     # Low priority (1) ensures specific domain routers match first
     subdomain-router:
-      rule: 'HostRegexp(`^[a-z0-9-]+\\.smoothschedule\\.com$`)'
+      rule: 'HostRegexp(`.+\\.smoothschedule\\.com`)'
       priority: 1
       entryPoints:
         - web-secure